First adventure games I played were Murder on the Mississipi, The Kobayashi Maru (sp) and another star trek one on the Commodore 64. I never got far in them, I was only about 6 or 7 (I did finish Mickey's Space Adventure and Winnie The Pooh
). When we got a PC when I was 9, Dad let us get a two games - a three pack containing Leisure Suit Larry 1, Police Quest 1 and Space Quest 1, and The Secret of Monkey Island. Not sure which was played first but I do remember that Monkey Island took the longest to finish...